Machine for manufacturing rims



' 1, '1 12 Feb. 22, 1927. v D; c. CARROLL 6 88 MACHINE FOR MANUFACTURING RIIIS Filed Sept. 19, B23 7 Sheets-Sheet 1 \i l jyzaaw W eaa'. 2 Z

D. c. CARROLL MACHINE FOR MANUFACTURING RIMS '7 Sheets-Sheet 2 Filed Sept. 19, 1923 Feb. 22 1927.

o. c. CARROLL MACHINE FOR MANUFACTURING RIMS 7 Sheet s -Sheet 5 Filed Sept. 19, 1923 Jude/ZZZ?" flwifag C Cww' fl- Q (I M J f k D. C. CARROLL MACHINE FOR MANUFACTURING RIMS Filed Sept. 19, 1923 'I' Sheet-Shet 4 r ch, 22, 1927. I 18 812 jwefzd ofl M 73355. JQZZas C(CLTTOZZ Feb. 22 1927; 1,618,812

D; c; CARROLL MACHINE FOR MANUFACTURING RIMS Filed Sept. 19, 1923 7 jadia s C (afraid D. C. CARROLL IAOHINH FDR IANUFACTURING RIIlS v ms. 22, 1927. 8.812

Filed Sept. 19. 1923 '1 sneetsT-snetj e Zfl' 709.56. I 7306:6827.

2M6 C Ca fa Feb. 2 1927.

D. c; CARROLL MACHINE FOR MANUFACTURING RIMS Filed Sept. 19, 1923 '7 Sheets-Sheet 7 Z izdezzr wiza C Carrall,

' only once.-

Patented Feb. 22, 1927.

U NET ED ST T ES PATENTOFFICE.

DALLAS C. CARROLL, F AKRON, OHIO, ASSIGNGR TO TEE FIRESTONE STEEL PROD- i UCTS COMPANY, OF AKRON, OHIO, A CORPORATION OF OHIO.

ACH NE non MANUFACTURING RIMS.

Application filed September 19, 1923. Serial No. 663,566.

This invention relates to a machine for use in the manufacture of annular objects, such as automobile rims and the like, and has particular reference to machines for forming and shaping the blanks from which the rims are made preparatory to the welding operation.

A general object of this invention is to provide a machine of the type indicated, in which the blanks from which the rims are formed are cut to the proper length, subin the provision of shearing, polishin stamping and circlingm'eans arranged to operate successively on a blank form from which a rim is formed, combined with means movable to carry the blank successively to the said means. 7

1 Another feature of the invention resides in the provision'of novel stamping mechanism by means of which the blanks are stamped and in which means are present for insuring that each, blank will be stamped These and other features of the invention will appear more fully from the following detailed description when read in connection with the accompanying drawings and will be pointed out in the appendedclaims.

In the drawings:

Figure 1 is a plan iew of the embodiment of the machine selected to illustrate the invention;

Figure 2 is a side elevation thereof;

vtion) of one end of the shearing mechanism looking toward the front of thei'nachine; Figure 4 is the transfer and circling mechanism taken along the line 1-4 of Figure 1 V i I Figure 5 is a plan view of one of the circling mechanisms; 7

Figure 6 is an end elevation of Figure 5;

Figure 7 is a view taken along lines 7-7 of Figure 5; V

Figure 8 is a side elevation of the stamping mechanism;

Figure 9 is a section taken on line 9 9 of Figure 8.

In its general aspects, the machine 'inchides a shearing mechanism A for trim;

ming the edges of the blank, a conveyor B for supporting and conveying the blanks,

polishing devices C for preparing the ends of the blank for the welding operation,

transferring mechanism D for receiving the blanks and-feeding them'into stamping devices E, and circling mechanisms F and Gr for bending the blanks into annular form.

The operating parts of the machine are supported upon suitable standards 2 connected by side bars 4 and cross bars 6 secured to the standards in any desirable'manner, such as by means of bolts 8. i L

The endless conveyor B is arranged to travel through the length of the machine.

The conveyor comprises duplicate endless chains 10 held in laterally spaced relation. Alternate links of the chains are provided with recesses 12 in which the blanks 1 from which the rims are formed are adapted to seat in the manner clearly shown in Figure 4. 7

Cross shafts 14 and 16 are journaled in brackets '18 and 20'respectiv-ely at opposite ends of the machine, and are provided with spaced sprocket-s 22 about which the chains are trained. p

Intermittent movement is imparted to the conveyor B by a pawl 24 arranged to engage ratchet 26 secured to'one end of the shaft 14. The pawl 24 is secured to the upper end of an arm 28 mounted for pivotal'movement about the shaft 14. The arm 28 is connected by an adjustable link 30 to a crank mounted upon the outer end of a continuously driven shaft 34.

Arising above the standards 2 at the front end of the machine are oppositely disposed Figure 3 is an-elevation (partly in secvertical U-shaped brackets 40 connected at their upper ends by a cross bar 42. Formed upon the inner face 44 of the brackets 40 are vertical guideways 46 in which blocks or knife carriers 48 are mounted for reciprocating movement. Movement is imparted to the carriers 48 by means of an eccentric 5 0 formed upon the horizontal shaft 34' extending through suitable'bearings 52 carried 1y from the bracket in the reciprocating cutter.

by the upper end of the brackets 40. Surrounding the eccentric is a stra 54 of conventional construction and having the lower end thereof recessed to receive the threaded end 56 of a connecting arm 58, a half nut (30 serving to retain the arm in ad justed position within the recess. The arm 58 is connected to the knife carrier 48 by a ball and socket joint; 62.

Sccuredto the carrier 4:8 by a screw 64 is a cutting element (iii adapted to cooperate with a stationary cutting element (58 which is fixed to a lug TO projecting inward path of the It will thus be seen that rotation oi the shaft 34 will cause a step-by-:-tep advancement of the conveyor B and an intermittent movement of the shearing; knives S6. The ll'lOVQlllOllliS oi the conveyor and. knives are S nchronized in such a inannt as to advance t e blanks duinng theupwarrl. stroke of the knives and hold the blanks stationary during the downward or cutting; stroke.

Upon the end of shaft 3% s mounted a gear 72 which is driven by a pi ion Tet carried by a shaft T6 having its inner end journaled in the bracket it and the outer end supported in bracl-Iet The shaft provided with a gear Stlwhich meshes with a pinion 82 mounted upon the rotor of an electricmotor S4 conveniimtly tsu iiported upon the standard 2.

Preparatory to the welding: operation. it

is highly desirable to polish the ends of the blanks in order to remove all dirt and rust therefrom in order to secure a clean contact with the welding meel'iamsm. To the end a polishing unit (l arranged along the path of the conveyor B at each side of the machine. Each polithing unit consists of an emery wheel rotatably mounted upon a shaft 92 carried by a suitable housinglll .upon the upper end of an adjustable bracket for vertical adjustintmt to compensate for wear thereof, the desired adjustn'unt being); affected in the illustrated embodiment by means of a handle 98. the operation o'twhieh produces vertical movement ot' the housing 94 with respect to the bracket 96 in a conventional and well known manner.

The. ends of the blank 1 project beyond the conveyor and arcnioved over the surface of the polishing wheels during the advancing; movement of the conveyor. ..-\rran;red aboveeach wheel 00 is a spring pressed shoe 100 carried by a bracket 102 secured to the 96. The wheels 99 are preferably arranged 1 bracket 40. Theende of the blank are vield ingly pressed by the shoes 100 into contact with the surtace of the polishing wheels in a. manner readily understood.

After the shearing and polishing operations, the blanks 1 aretran ferred to circling devices F and G by mechanism to be hereends of parallel shafts 108 and 110 journaled. in the brackets ill-l is a pair of rollers 112.

and 114 by means of which the blanks are ted and gulded into the device. The lower roller 114; is idly mounted upon its shaft 110, while the upper roll is keyed to the shaft 108 and is arranged to be positively driven. The bearing blocks 116, in which the shaft of the upper roller 112 is mounted, are vertically ad'ustable by means of screws 118 extendiu through cross bars 120, the

arrangement permitting the roller 112 to be raised and lowered in accordance with the thickness of the blank 1.

Centrally mounted between the brackets 10% is a shaft 1522 upon the outer end of which a circling wheel 1% i is loosely mounted. Vertical adjustment of the wheel 12% is secured. by the screws 126 by means of which the bearings 128 are raised and lowered as desired.

Directly beneath the circling, wheel 12-l is a pressure and guide roll 130 which forces the blanks against the circling wheel and starts the bending: thereof. The roll 130 keyed upon a shaft 132 ar 'anged below and parallel to the circling roll shaft 122. To the rear of the roll 130 and elevated with respect thereto is a second pressure roll 13% which is closely arranged to the periphery of the circling wheel, the combined action of the two rolls being to cause the blank to on theslurtt 1538 which carries the guide roll 1 1. From the shaft 132 power is communicated to the teed roll 112 through gears 152. 154. and 156 in the manner clean 1y shown in Figures 5 and 7. As prcviouslv pointed out, the circlin roller 121- and the lower teed roll 114 are idly mounted.

The above mentioned general features of the construction and operation ofthe circling device differ in no essential respect from the construction andoperation of circling machines of tlns type heretofore 1n use and require 'no further description.

' rearwardly ofi'set brackets 166 mounted upon the cross bar 6. The runway 160 is providcd with a plurality of supporting and feeding rollers 168 which are mounted upon horizontal shafts 17 0, similar rollers 17 2 carried upon shafts 171 being provided in the outer runway 162; The blanks are fed to the circling machine F by the runway 160 and to the circling machine G by the runway 162. To accomplish-this opposite feeding of the blanks, it is, of course, necessary to drive the rolls in each runway in opposite directions. It will be observed that one roll in one runway is closely positioned wlth'respec't to a roll in the other, the arrangement being the preferred construction 1n facilitating the drivingof the rolls, although not at all essential to the o erationof the device as will be understooc. Referring to Figure 1, the outer end-of the end shaft 170 is provided with a sprocket 176 which is connected by a chain 178 to a sprocket 180 mounted upon the shaft 108 which is driven from the motorby means previously described. The shaft 170 carries a gear 182 which meshes with a gear 184 upon the end of the shaft 174. The shaft 170 is also provided with a second sprocket 185 which has a chain connection with a similar sprocket on the shaft 170 of the middle group of rolls. From this construction, itlwill be seen that the rolls 168' will operate to feed the blanks in the runway 160 in one direction, while the rolls 172 in runway 162 will feed them in the opposite direction.

'The connections between the endless con veyor B and the runways 160 and 162 areclearly shown in Figure 4. These connec tions comprise a plurality of inclined plates 186 and 188 having one end adjacent the conveyor B and the other end secured to the middle and inner side rails respectively in a position to discharge the blanks into the the manufacturer.

elevate the forward edge thereof so that the v scribed, this invention contemplates the pro- The blanks not engaged by the screws vision of'means for automatically stamping the blanks with a desired insignia, such as the date ofmanufacture and the name of The accomplishment of this result is obtained by a peculiar and.

novel construction of the lower feed roll 11 1.

previously referred to. Upon the periphcry of the roll 114;, a stamping die 19.0 is positioned by means of screws (not shown) passing through a downwardly extendingleg of the die and holes 192 provided in the face of roll adjacent the edge thereof. Around the remaining periphery of the roll issecured a friction element or tire 193 of rubber or similar material, the outer surface of which is substantially flush with the face of the die. The roll 111 is idly mounted upon lts supporting shaft 110 and is rotated by frictional engagement with the under surface of the blank 1.

In order to insure that each blank will only be stampedonce, the construction .is

such that the roll 114 will be rotated. once for each blank. To this end the roll is notched out'or broken .for a considerable distance around its periphery, as at 19 1. so that at the broken portion there will be no engagement between the roll and the blank. and accordingly no tendency on the part of the roll to rotate. Thenotch 194 islocated adjacent the die so that after the. die has stamped the blank the engagement between the roll and the blank will be broken.

. Secured to the side of the roll and projectlng beyond the periphery thereof is an arm v196 which carries in its outer end a small roller 198. The roll 11 1 is provided with a counterbalance 200 so positioned onthe roll as to cause the roller 198 to engage the under surface of a blank passing through Sn i the feedingrolls and to be moved into the path of a succeeding blank when. allowed to do so by the removal of the previous one. The incoming blank .will 'then strike the roller 198 and cause the roll 7114 to rotate until the frictional element 193 is in contact with the under side of the blank. This engagement will cause the roll 11 1 to rotate notch 191 has again reached the uppermost position and disengaged the roll from the blank.

Since the manner in which the different parts of the machine operate to perform their functions and the sequence of the oper ations as a whole have been set forthjin connection with the detailed description of until the blank has been stamped and the g ends of a blank, means for bending the machine, no further description neces sary for a con'iplete understanding of the invention.

Having described my invention, what I claim as new and desire to secure by Letters Patent ot the United States is:

1. A machine of the class described having in combination, blank supporting means, means for operating on the blanks While on said support, means for removing the blanks from the support, and conveyors i'or carryingalternate blanks in opposite directions.

A machine of the class described hav ing in combination. blank supporting means, means for operating on the blanks on said support-ing means, a plu 'ality of conveyors adjacent the support adapted to carry the blanks in opposite directions, and means for automatically transferring the. blanks from the support to the conveyors.

3. A machine of the class described having in combination, an eni'lless conveyor for supporting blanks, operating means adjacent said conveyor, a plurality of inclined plates arranged in diflerent planes to which the conveyor delivers, and means by which the blanks are allocated to the different plates. i

4. A machineot the class described having in combination, an endless conveyor for supporting and transferringblanks, operating means adjacent said conveyor, a plurality of means located at the discharge end of said conveyor for moving the blanks in opposite directions, and means for allocating the blanks to each of the latter means from the conveyor.

5. A machine of the class described having in combination, an endless conveyor for supporting blanks in a horizontal plane, operating means adjacent said conveyor, a plurality of conveyors arranged transversely to the nth of the endless conveyor and at the disc large end thereof, the said latter conveyors consisting of oppositely driven rollms, and means for automatically transferring the blanks from the endless conveyor to the latter conveyors.

6. A machine of the class described hav ing, in combination, means for cutting the the blank into annular torm,= and means for transferring the blank from the cutting means to the bending means.

7. A machine of the class described having in con'il'iimition, an endless conveyor for supporting blanks, shearing mean. adapted to operate on the ends of blanks on the conveyor, means for intermittently operating the said conveyor, a plurality of circling devices arranged on opposite sides of the machine, and means for transferring the blanks from the conveyor to the circling devices.

8. A machine of the class described having in combination, an endless conveyor for 9. A machine of the class described havby ing in combination, an endless conveyor for sup )ortingblanks, meanst'or operating on the )lanks supported thereby, a plurality of circling devices arranged on opposite sides of the machine, separate means for feeding blanks to each circling device, and means for transferring the blanks from the endless conveyor to the feeding means.

10. A machine of the class described having in combination, means for supporting and conveying blanks, operating means adjacent said support, circling means located on opposite sides of the machine, means for removing the blanks from the conveyor, and means for conveying the blanks in a path transversely to the path of the conveyor into the circling means.

11. machine of the class described having in combination, means for shearing the ends of blanks, means for polishing the ends of thefblanks, means for bending the blanks into circular form, and automatic means for automatically transferring the blanks successively to each of said means.

12. A machine of the class described having in combination, meansfor shearing the ends ofblanks, means for polishing the ends of the blanks, means for. stamping the blanks, means for bending the blanks into circular form, and means for automatically transferring the blanks to each of said means.

13. A machine of the class described having in combination, means for shearing the ends of a. blank, means for polishing the ends of the blank, means operated by the blank for stamping the blank, and means for conveying the blank successively to each of said means,

14. A machine of the class described hav ing in combination, an endless conveyor for supporting a plurality otblanks, reciprocating means for shearing the ends of the blanks, means for moving the conveyor in timed relation to said cutting means, a polishing device located upon each side of the conveyor and adapted to engage the ends of theblanks, and n'icans above each of said devices for forcing the blanks into engagement therewith. i

A machine of the class described having in combination, an endless conveyor for supporting and feeding blanks in a horizontal plane, means for shearing both ends of the blanksqwhile supported thereon,

means for bending the blanks into circular 5 rolls for stamping the blanks.

16. A machine of the class described having in combination, an endless conveyor for supporting and feeding blanks in a horizontal plane, means for shearing the ends 0 of the blanks While supported thereon,

means adjacent each side of the conveyor 1n the path of the blanks for polishing the ends of the blanks, means located on opposite sides of the conveyor for bending the blanks into circular form, and means for transferring the blanks from the conve or to each bending means, the said transterring means comprising inclined plates arranged in different inclined planes, means associated With the conveyor for lifting the blanks upon the higher plates, and means for receiving the blanks from the inclined plates and feeding them in opposite directionsto the bending means.

DALLAS C. CARROLL. 

